Engine block water heater



May 21, 1946. OLSON 2,400,838

ENGINE BLOCK WATER HEATER Filed April 17, 1944 2 Sheets-Sheet l I nrwtarALF P OLSON,

2mm W May 21, 1946. A. P. OLSON 2,400,838

ENGINE BLOCK WATER ,HEATER Filed April 17, 1944 2 Sheets-Sheet 2 3 0, bI mi i- 1 I j I Q {Q i" \i &

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, WWW H/amfgx Patented May 21, 1946 x ENGINE BLOCK WATER HEATER Alf P.Olson, Idaho Falls, Idaho Application April 17, 1944, Serial No. 531,413

2 Claims.

This invention relates to an electric heater expressly designed andappropriately constructed for attachment to aninternal combustion engineblock, thesame being located between the block and the radiator, thisfor purposes of heating the water in the' cooling system in an obviousmanner.

The purpose of the invention is to serve as a so-called "temporary orovernight heater" and it functions to sufiiciently heat the water tokeep it in circulation while the vehicle is in the garage or otherwiseparked, whereby to render starting easier during cold weather spells.

In carrying out the principles of the invention I have adopted a simpleand economical attachment having a hose and nipple on one side forconnection with the radiator, and having nipples on the other side toaccommodate complemental hoses connected with the usual expansionplugholes in the cylinder block.

More specifically the attachment comprises a nipple-equippedhose-accommodating cylindrical unit constructed at one end fordetachable connection of the electrically heated core element, thelatter being such that it can be used in association with either A. C.or D. C. current V scription and the accompanying illustrative draw- Inthe drawings, wherein like numerals are employed to designate like partsthroughout the same- Figure 1 is a side elevational view of aconventional internal combustion engine with radiator associatedtherewith and showing the improved heater attachment and the manner inwhich it is constructed and applied.

Figure 2 is an enlarged view, partly in section and partly in elevationof the essential 'parts of the invention.

Figure 3 is a cross-section on the line 3-3 of Figure 2 looking in thedirection of the arrows.

In Figure l the motor block or engine, as a unit, is indicated at A andthe radiator at B, these being conventional parts. As brought out betterin Figure 2, the attachment comprises a substantially cylindrical casingof appropriate material and dimensions indicated by the numeral 4, thisbeing closed at the left-hand end and provided with an internallyscrew-threaded accommodation neck 5 at the right-hand end. The electricheating element or core 6 fits into the cylinder in spaced relation andis provided with a screw-threaded connection 1 threaded into the neck,this connection being on a nut faced head 8. A gasket 9 is interposedbetween the parts 5 and 8 to provide the desired fluid-tight joint. Theelectric conductor cord Ill is provided with a plug II to accommodate apronged plug I! on an extension cord 13, whereby to provide convenientmeans for supplying current to the heating element II. It is understoodthat the particular wiring and method of connecting the wires is notimportant and is, therefore, not detailed.

On the lower side the casing 4 is provided with a nipple II to which anadjacent end of the radiator hose I5 is connected. The opposite end ofthe hose is secured to the bottom of the radiator as shown in Figure 1.Similar nipples l6 and I! are arranged on the opposite side, these toaccommodatethe shorter hoses l8, which latter hoses are suitablyfastened to the nipples and also secured to fittings I9 mounted in thecustomary expansion plug-holes in one side of the water jacket of thecylinder block, this as brought out in Figure 1.

With the current "on the core element 6 serves to circulate the waterthrough the hoses,

, radiator and cylinder block in an obvious manner, thus keeping it at atemperature suiiicient to avoid freezing and promote pump starting, thisinan evident manne r It is thought that persons skilled in the art towhich the invention relates will .be able to obtain a clearunderstanding of the invention after considering the description inconnection with the drawings. Therefore, a more lengthy description isregarded as unnecessary.

Minor changes in the shape, size and arrangement of details comingwithin the field of invention claimed may be resorted to in actualpractice, if desired.

Having described the invention, what is claimed as new is:

1. An electric circulatory water heater attachment for conventionalinternal combustion engine blocks comprising a cylinder, the latterbeing closed at one end and having a reduced internally screw-threadedneck at its opposite end, said cylinder being provided on the centralportion of its normal bottom with a nipple to accommodate a hose forconnection with the associated radiator, and being further provided atdiametrically opposite points with outstanding longitudinally spacedadditional nipples. these to accommodate hose line connections forconnection with the customary expansion plug holes in the cylinderblock, a screw-plug having an electric heating core element, said coreelement being located in spaced concentric relation on the interior ofsaid cylinder, said plug being threaded in said neck and being providedwith a wrench grip and an electric current-conducting cable.

2. An electric circulatory water heater attachment for conventionalinternal combustion engine blocks comprising a cylinder, the latterbeing closed at one end and having a neck at its opposite end, saidcylinder bein Provided on the central portion of its normal bottom witha hose for connection with the associated radiator. and being furtherprovided at diametrically opposite points with outstandinglongitudinally spaced additional nipples, these to accommodate hose lineconnections for connection with the customary expansion plug holes inthe cylinder block, a plug having an electric heating core element, saidcore element being located in spaced concentric relation on the interiorof said cylinder, said plug being mounted in said neck and beingprovided with a tool grip and an electric current-conducting cable.

ALF P. OLSON.

